Legato wrote:
1. I would show a girl I was attracted to by looking at her either frequently or for longer than just a glance.
2. If I try to get your attention somehow, that means I'm interested.
3. If you walk up to me and start talking to me, you automatically gain many points. In general, guys like girls that do that.
4. If I walk next to you, that means I'm trying to talk to you and get your attention, which means I'm interested....
5. If I smile at you, that means I'm attracted\interested.
^ I think 1. is pretty reliable, but if u struggle with eye contact, its hard to pick up this sign.
I never notice boys flirting with me. Personally, I like boys that make it easy by just saying what they mean!